Abstract

We discuss a method for revealing a photon-number-splitting (PNS) attack in a quantum key distribution (QKD) system, which is based on analyzing the statistical distribution of photon numbers detected in each time interval. A relation for estimating the difference between the expected photon-number distribution and the one appearing in the course of a PNS attack is derived. An equation defining the minimum number of counts necessary for revealing the attack with desired probability is given. Formulas for calculating the amount of raw keys known to an illegitimate user due to a PNS attack are obtained depending on the system’s total loss. The main advantage of the method is the possibility of using it in QKD systems without significant modifications in the protocol or experimental setup.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Security of subcarrier wave quantum key distribution against the collective beam-splitting attack

G. P. Miroshnichenko, A. V. Kozubov, A. A. Gaidash, A. V. Gleim, and D. B. Horoshko
Opt. Express 26(9) 11292-11308 (2018)

Decoy-state method for subcarrier-multiplexed frequency-coded quantum key distribution

Sudeshna Bhattacharya and Pradeep Kumar Krishnamurthy
J. Opt. Soc. Am. B 30(4) 782-787 (2013)

Thermal blinding of gated detectors in quantum cryptography

Lars Lydersen, Carlos Wiechers, Christoffer Wittmann, Dominique Elser, Johannes Skaar, and Vadim Makarov
Opt. Express 18(26) 27938-27954 (2010)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (16)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription